/**
*     Copyright (c) 2022, Nations Technologies Inc.
* 
*     All rights reserved.
*
*     This software is the exclusive property of Nations Technologies Inc. (Hereinafter 
* referred to as NATIONS). This software, and the product of NATIONS described herein 
* (Hereinafter referred to as the Product) are owned by NATIONS under the laws and treaties
* of the People's Republic of China and other applicable jurisdictions worldwide.
*
*     NATIONS does not grant any license under its patents, copyrights, trademarks, or other 
* intellectual property rights. Names and brands of third party may be mentioned or referred 
* thereto (if any) for identification purposes only.
*
*     NATIONS reserves the right to make changes, corrections, enhancements, modifications, and 
* improvements to this software at any time without notice. Please contact NATIONS and obtain 
* the latest version of this software before placing orders.

*     Although NATIONS has attempted to provide accurate and reliable information, NATIONS assumes 
* no responsibility for the accuracy and reliability of this software.
* 
*     It is the responsibility of the user of this software to properly design, program, and test 
* the functionality and safety of any application made of this information and any resulting product. 
* In no event shall NATIONS be liable for any direct, indirect, incidental, special,exemplary, or 
* consequential damages arising in any way out of the use of this software or the Product.
*
*     NATIONS Products are neither intended nor warranted for usage in systems or equipment, any
* malfunction or failure of which may cause loss of human life, bodily injury or severe property 
* damage. Such applications are deemed, "Insecure Usage".
*
*     All Insecure Usage shall be made at user's risk. User shall indemnify NATIONS and hold NATIONS 
* harmless from and against all claims, costs, damages, and other liabilities, arising from or related 
* to any customer's Insecure Usage.

*     Any express or implied warranty with regard to this software or the Product, including,but not 
* limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement
* are disclaimed to the fullest extent permitted by law.

*     Unless otherwise explicitly permitted by NATIONS, anyone may not duplicate, modify, transcribe
* or otherwise distribute this software for any purposes, in whole or in part.
*
*     NATIONS products and technologies shall not be used for or incorporated into any products or systems
* whose manufacture, use, or sale is prohibited under any applicable domestic or foreign laws or regulations. 
* User shall comply with any applicable export control laws and regulations promulgated and administered by 
* the governments of any countries asserting jurisdiction over the parties or transactions.
**/
 
 
/**
*\*\file main.c
*\*\author Nations
*\*\version v1.0.1
*\*\copyright Copyright (c) 2022, Nations Technologies Inc. All rights reserved.
**/
#include <stdio.h>
#include "main.h"



static uint8_t max_ms = 116;
/**
*\*\name    delay_xms.
*\*\fun     delay program.
*\*\param   nms
*\*\return  none
**/
void delay_xms(uint32_t nms)
{
    uint16_t i;
    uint16_t count_1 = nms / max_ms;
    uint16_t count_2 = nms % max_ms;
    if(0 == count_1)
    {
        systick_delay_ms(nms);
    }
    else
    {
        for(i = 0; i < count_1; i++)
        {
            systick_delay_ms(max_ms);
        }
        if(count_2 != 0)
        {
            systick_delay_ms(count_2);
        }
    }
}

/**
*\*\name    Memset.
*\*\fun     memery set a value.
*\*\param   s source
*\*\param   c value
*\*\param   count number
*\*\return  s
**/
void *Memset(void *s, s8 c, u32 count)
{
    s8 *xs = (s8 *) s;
    while (count--)         // clear 17byte buffer
    {
        *xs++ = c;
    }
    return s;
}

/**
*\*\name    Buffercopy.
*\*\fun     Compares two buffers.
*\*\param   pBuffer1
*\*\param   pBuffer2
*\*\param   buffer's length
*\*\return  s
**/
void Buffercopy(uint8_t *dest, uint8_t *src, uint16_t BufferLength)
{
    while (BufferLength--)
    {
        *dest = *src;
        dest++;
        src++;
    }
}

/**
*\*\name    main.
*\*\fun     Main program.
*\*\param   none
*\*\return  none
**/
int main(void)
{

    USART_InitType USART_InitStructure;    

    log_init();
    printf("\r\n test LIN master mode\r\n");

    /* System Clocks Configuration */
    RCC_Configuration();

    /* NVIC configuration */
    NVIC_Configuration();

    /* Configure the GPIO ports */
    GPIO_Configuration();

    /* USARTx configuration ------------------------------------------------------*/
    USART_Structure_Initializes(&USART_InitStructure);
    USART_InitStructure.BaudRate            = 9600;
    USART_InitStructure.WordLength          = USART_WL_8B;
    USART_InitStructure.StopBits            = USART_STPB_1;
    USART_InitStructure.Parity              = USART_PE_NO;
    USART_InitStructure.HardwareFlowControl = USART_HFCTRL_NONE;
    USART_InitStructure.Mode                = USART_MODE_RX | USART_MODE_TX;
    /* Configure USARTx */
    USART_Initializes(USARTx, &USART_InitStructure);
    /* Enable the USARTx LIN mode*/
    USART_LIN_Break_Detect_Length_Set(USARTx,USART_LINBDL_10B);
    USART_LIN_Enable(USARTx);
    /* Enable the USARTx */
    USART_Enable(USARTx);

    while (1)
    {
        TestLinMaster();
        delay_xms(500);
    }
}

/**
*\*\name    RCC_Configuration.
*\*\fun     Configures the different system clocks.
*\*\param   none
*\*\return  none
**/
void RCC_Configuration(void)
{
    /* Enable GPIO clock */
    GPIO_AHBClkCmd(USARTx_GPIO_CLK);
    RCC_APB2_Peripheral_Clock_Enable(RCC_APB2_PERIPH_AFIO);

    /* Enable USARTx Clock */
    USART_APBxClkCmd(USARTx_CLK);
}

/**
*\*\name    NVIC_Configuration.
*\*\fun     Configures the nested vectored interrupt controller.
*\*\param   none
*\*\return  none
**/
void NVIC_Configuration(void)
{
    NVIC_InitType NVIC_InitStructure;

    NVIC_Priority_Group_Set(NVIC_PER2_SUB2_PRIORITYGROUP);
    /* Enable the USARTx Interrupt */
    NVIC_InitStructure.NVIC_IRQChannel                   = USARTx_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority        = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd                = ENABLE;
    NVIC_Initializes(&NVIC_InitStructure);

}

/**
*\*\name    GPIO_Configuration.
*\*\fun     Configures the different GPIO ports.
*\*\param   none
*\*\return  none
**/
void GPIO_Configuration(void)
{
    GPIO_InitType GPIO_InitStructure;

    /* Initialize GPIO_InitStructure */
    GPIO_Structure_Initialize(&GPIO_InitStructure);    

    /* Configure USARTx Tx as alternate function push-pull */
    GPIO_InitStructure.Pin            = USARTx_TxPin;
    GPIO_InitStructure.GPIO_Mode      = GPIO_MODE_AF_PP;
    GPIO_InitStructure.GPIO_Alternate = USARTx_Tx_GPIO_AF;
    GPIO_Peripheral_Initialize(USARTx_GPIO, &GPIO_InitStructure);   

    /* Configure USARTx Rx as alternate function push-pull */
    GPIO_InitStructure.Pin            = USARTx_RxPin;
    GPIO_InitStructure.GPIO_Alternate = USARTx_Rx_GPIO_AF;
    GPIO_Peripheral_Initialize(USARTx_GPIO, &GPIO_InitStructure); 
}

